What’s Vulnerable › Vulnerabilities
CVE-2026-5054: NoMachine External Control of File Path Local Privilege Escalation Vulnerability
- Severity: high (CVSS 7.8 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-04-11 · updated 2026-06-17
- Weakness: CWE-73
Description
NoMachine External Control of File Path Local Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of NoMachine. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of command line parameters. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-28630.
Affected products
- NoMachine: before 9.4.14 — fixed in 9.4.14
How to fix
Upgrade to a fixed version: NoMachine 9.4.14. Check the vendor advisory for mitigations.
References
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